John Wilding leads Clinical Research into Obesity, Diabetes and Endocrinology at the University of Liverpool, UK. He trained in medicine in Southampton and at the Hammersmith Hospital, London, where he also undertook three years laboratory-based research into the neurobiology of obesity and diabetes. He has worked at University Hospital Aintree, Liverpool, since 1996 and as Professor of Medicine since 2005. He leads specialist services for severe obesity at University Hospital Aintree – designated a Centre for Obesity Management by the European Association for the Study of Obesity. He is a Council member of the Royal College of Physicians and chairs the UK National Clinical Research Network Metabolic and Endocrine Speciality Group. He has published over 250 research papers, chapters and review articles related to his clinical and laboratory research interests in the pathophysiology of obesity and type 2 diabetes and evaluation of new treatments. When not at work he likes to swim, bike and run and completed his first ‘Iron distance’ triathlon in 2015.